I've got an odd problem. I'm using smtpd as a relay. Everything works fine, except, every 2-3 weeks I get the following error (on my local machine):
47b6501430167caa mta error reason=IO Error: certificate verification failed: certificate has expired and a few lines down: result="TempFail" stat="Network error on destination MXs" Looking at the log on the server: connected address=my.ip.address host=me.at.myisp disconnected reason="io-error: handshake failed: error:0A000415:SSL routines::sslv3 alert certificate expired" I've dealt with this up until now by restarting opensmtpd on the server and then eveyrthing is fine again. But, I could do with some help getting it sorted once and for all. Local machine: Linux Mint 21.3 Servers: Debian 12.5